For­mula One

Lewis Hamil­ton, who this week­end be­gins his ti­tle vic­tory pa­rade in Brazil, has warned For­mula One’s own­ers Lib­erty Me­dia that he will walk out on the sport if they go ahead with their plans to ex­pand the cal­en­dar from 21 races to 25. “I am not go­ing to be here if it gets to 25 races, that’s for sure,” he said.